Re: regex to find vowels in anyorder

@words = do{ local @ARGV = 'words.txt'; <> }; chomp @words;;

m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and print for @words;;
aboideau
aboideaus
aboideaux
aboiteau
aboiteaus
aboiteaux
absolutive
absolutize
absolutized
absolutizes
abstemious
abstemiously
abstemiousness
...
[download]

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

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In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

Comment on Re: regex to find vowels in anyorder Download Code

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Re^2: regex to find vowels in anyorder by moritz (Cardinal) on Dec 19, 2011 at 16:22 UTC
You can anchor that regex to the start of the string with `^` and have it fail faster; in practice I haven't been able to measure a difference, so either perl is clever enough, or the whole thing is determined by IO performance. Perl 6 - second systems done right	[reply] [d/l]
Re^3: regex to find vowels in anyorder by BrowserUk (Patriarch) on Dec 19, 2011 at 16:50 UTC
Even excluding IO, I cannot discern any appreciable difference either. @words contains 178,000 words: [0] Perl> $c =0; $t = time; m[(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time( +)-$t);; Found 1905 matches in 0.14288 seconds [0] Perl> $c =0; $t = time; m[(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.12593 seconds [0] Perl> $c =0; $t = time; m[(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13659 seconds [0] Perl> $c =0; $t = time; m[(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.14437 seconds [0] Perl> $c =0; $t = time; m[(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13993 seconds [0] Perl> $c =0; $t = time; m[(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13856 seconds [0] Perl> $c =0; $t = time; m[^(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13786 seconds [0] Perl> $c =0; $t = time; m[^(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13947 seconds [0] Perl> $c =0; $t = time; m[^(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.12269 seconds [0] Perl> $c =0; $t = time; m[^(?=.a)(?=.e)(?=.i)(?=.o)(?=.u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13944 seconds [0] Perl> $c =0; $t = time; m[(?=^.a)(?=^.e)(?=^.i)(?=^.o)(?=^.u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.12400 seconds [0] Perl> $c =0; $t = time; m[(?=^.a)(?=^.e)(?=^.i)(?=^.o)(?=^.u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.14011 seconds [0] Perl> $c =0; $t = time; m[(?=^.a)(?=^.e)(?=^.i)(?=^.o)(?=^.u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13754 seconds [0] Perl> $c =0; $t = time; m[(?=^.a)(?=^.e)(?=^.i)(?=^.o)(?=^.u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13191 seconds [download] With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply] [d/l]


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